package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private ReportService reportService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private MemberService memberService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        //通过日历类获取当前日期
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH,-12);
        Date time = calendar.getTime();

        List<String> list=new ArrayList<>();
        for (int i = 0; i <12 ; i++) {
            calendar.add(Calendar.MONTH,1);
            //获取时间 并格式化为 yyyy.MM格式
            list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
        }
        Map<String,Object> map = new HashMap<>();
        map.put("months",list);

        //通过当月日期查询会员数
        List<Integer> memberCount=reportService.findByTime(list);
        map.put("memberCount",memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
        }
        //查询预约套餐数据 人数
        @RequestMapping("/getSetmealReport")
        public Result getSetmealReport(){
            //先获取所有套餐数据名称对应预约人数<name: count>
          List<Map<String,Integer>> list= setmealService.getSetmealCount();
            Map<String,Object> map = new HashMap<>();
            map.put("setmealCount",list);
            List<String> setmealNames = new ArrayList<>();
            for (Map<String, Integer> stringIntegerMap : list) {
                for (String s : stringIntegerMap.keySet()) {
                    setmealNames.add(s);
                }
            }
            map.put("setmealNames",setmealNames);
            return new Result(true,MessageConstant.QUERY_SETMEAL_SUCCESS,map);
        }
//      查询所有表中数据
        @RequestMapping("/getBusinessReportData")
        public Result getBusinessReportData(){
        try {
         Map<String,Object> map=reportService.getBusinessReportData();
           return new Result(true,MessageConstant.QUERY_ORDER_SUCCESS,map);
        }catch (Exception e){
            return new Result(false,MessageConstant.QUERY_ORDER_FAIL);
        }
        }
//      导出表格信息
        @RequestMapping("/exportBusinessReport")
        public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
           try {
               //获取所有数据,将报表数据写入表格
               Map<String,Object> result=reportService.getBusinessReportData();
               String reportDate = (String) result.get("reportDate");
               Integer todayNewMember = (Integer) result.get("todayNewMember");
               Integer totalMember = (Integer) result.get("totalMember");
               Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
               Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
               Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
               Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
               Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
               Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
               Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
               Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
               List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
               String filePath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";
               //基于提供的Excel模板文件在内存中创建一个Excel表格对象
               XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
               //读取第一个工作表
               XSSFSheet sheet = excel.getSheetAt(0);

               XSSFRow row = sheet.getRow(2);
               row.getCell(5).setCellValue(reportDate);//日期

               row = sheet.getRow(4);
               row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
               row.getCell(7).setCellValue(totalMember);//总会员数

               row = sheet.getRow(5);
               row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
               row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

               row = sheet.getRow(7);
               row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
               row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

               row = sheet.getRow(8);
               row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
               row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

               row = sheet.getRow(9);
               row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
               row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

               int rowNum = 12;
               for(Map map : hotSetmeal){//热门套餐
                   String name = (String) map.get("name");
                   Long setmeal_count = (Long) map.get("setmeal_count");
                   BigDecimal proportion = (BigDecimal) map.get("proportion");
                   row = sheet.getRow(rowNum ++);
                   row.getCell(4).setCellValue(name);//套餐名称
                   row.getCell(5).setCellValue(setmeal_count);//预约数量
                   row.getCell(6).setCellValue(proportion.doubleValue());//占比
               }

               //使用输出流进行表格下载,基于浏览器作为客户端下载
               OutputStream out = response.getOutputStream();
               response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
               response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
               excel.write(out);

               out.flush();
               out.close();
               excel.close();
               return null;
           }catch (Exception e){
               e.printStackTrace();
               return new Result(false,"导出数据失败!");
           }
        }
        //获取预约报表数据每日预约数 每日到诊数
        @RequestMapping("/getOrderReport")
        public Result getOrderReport(){
        try {
            Map<String,Object> map= reportService.getOrderReport();
            return new Result(true,"查询数据成功!",map);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,"查询数据失败!");
        }
        }
    //获取会员年龄分段数据
    @RequestMapping("/getMemberAge")
    public Result getMemberAge(){
        try {
            Map<String,Object> map=memberService.getMemberAge();
            return new Result(true,"查询数据成功!",map);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false,"查询数据失败!");
        }
    }
}
